Question

$$C{H_3}Br + N{u^ - } \to C{H_3} - Nu + B{r^ - }$$        The decreasing order of the rate of the above reaction with nucleophiles $$\left( {N{u^ - }} \right)$$  A to D is
$$\left[ {N{u^ - } = \left( {\text{A}} \right)Ph{O^ - },\left( {\text{B}} \right)Ac{O^ - },\left( {\text{C}} \right)H{O^ - },\left( {\text{D}} \right)C{H_3}{O^ - }} \right]$$

A. A > B > C > D
B. B > D > C > A
C. D > C > A > B  
D. D > C > B > A
Answer :   D > C > A > B
Solution :
TIPS/Formulae :
The stronger the acid, the weaker the conjugate base formed.
The acid character follows the order :
$$C{H_3}COOH > {C_6}{H_5}OH > {H_2}O > C{H_3}OH$$
The basic character will follow the order
$$C{H_3}CO{O^ - } < {C_6}{H_5}{O^ - } < {O^ - }H < C{H_3}{O^ - }$$

Releted MCQ Question on
Organic Chemistry >> General Organic Chemistry

Releted Question 1

The bond order of individual carbon-carbon bonds in benzene is

A. one
B. two
C. between one and two
D. one and two alternately
Releted Question 2

Molecule in which the distance between the two adjacent carbon atoms is largest is

A. Ethane
B. Ethene
C. Ethyne
D. Benzene
Releted Question 3

Among the following, the compound that can be most readily sulphonated is

A. benzene
B. nitrobenzene
C. toluene
D. chlorobenzene
Releted Question 4

The compound 1, 2-butadiene has

A. only $$sp$$   hybridized carbon atoms
B. only $$s{p^2}$$ hybridized carbon atoms
C. both $$sp$$  and $$s{p^2}$$ hybridized carbon atoms
D. $$sp$$ , $$s{p^2}$$ and $$s{p^3}$$ hybridized carbon atoms

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